Pencil



IIASBM J. BRICKEN March 25 1924.

PENCIL l Filed Sept. 22, 1920 l S l l illllllllllllllllllllllllll ffl/n: llll'lll lh EGNCEL appncanen fue@ september ae, raso. serial no. einem.

other object is to provide a. pencil of simr ple construction, and.` one which is adapted to be rapidly and inexpensively manufactured. l

Other objects relate to features of con struction and arrangement which will appear more fully hereinafter.

ln the drawing" Figure l is a section taken on a vert-ical plane longitudinally' through the pencil;

ig. 2 is a broken view showin. the coinstriction of a modified form of tte pencil; an

Fig. 3 is a View similar to Fig. l, showing a further modification of the pencil.

The same reference characters are used to indicate similar elements in the two views, in which l is an outer barrel of sheet met-al havin a tapered end Q and an opening formed therein to receive and hold a lead 3, of proper size. 4 is an inner barrel, of similar material, adapted to be moved within said outer barrel to adjustthe lea/d as desired, the end of the inner barrel being tapered and blunt, and against which the end of the lead abuts. A. cap member 5, preferably of rubber, and m'milar to the form shown, is secured to the outer end of the inner barrel, and a'rds a convenient grip for adjusting the inner barrel longitudinally, to cause the lead to protrude farther from said outer barrel as it is Worn in use.. This cap member extends toward the point of the pencil sufliciently to normally enclose the upper end of said outer barrel, and, if made ot soft rubber, a'ords a convenient eraser. lt may, if desired, be nia/de of hard rubber, metal, or composition material.

Referring particularly to Fig. 1, it will be Seen that the inner barrel t has threads ti formed adjacent the outer end thereof, which c'oaot with corresponding threads formed in the reduced portion 5 'ot the rc'- cess 5b the cap member 5, by which said cap member .is removably attached to no said inner barrel..

In the sides of the .inner barrel l proif'ide one ormore slots 7, around which the metal is slihtly expanded, toa-ilord suiicient frictionar Contact with. the outer barrel to hold e5 said barrels in operative position against acm cidental relative movement, but at the same time affording such. Contact as will permit the user of the pencil to slide said inner barrel longitudinally within said outer bar- 7o rel to adjust the lead 3, required. The inner barrel may be used as aV magazine for eXtra leads, the slots 7 being of insuficient Width to permit the leads to drop through, l

In using the pencil. illustrated in Fig. l. the operator unscrews 'the cap ii from the inner barrel, removes a lead therefrom, and inserts it in the opening.;` Poi" the outer barrel, which frictionally retains the same ac against unintentional removal. The cap is then replaced and the barrels adjusted lon gitudinally to accommodate the inserted lead, as will be clear.

In the form of pencil shown in. Fig. 2- es the cap 5 may be made of ine-tal, having,- the threaded recess 5b adapted to coact with the threaded portion of the outer barrel l.. The end of the inner barrel d tits in the reduced recess 58 of the cap pand is held therein @a by means of lugs 8 struck up from said inner barrel into cavities 9 of the cap mem ber, or by other means.

@ne or more longitudinal. slots li are formed in the threaded. portion of the outer g5 barrel, by means of which that portion of said barrel may be slightly expanded to ensure coaction between the threads thereof and the threads of the cap 5 Suliicient clearance between the barrels is provided to slightly' greater than the length of the lead 11o may be inserted therethrough in using said to be used with the pencil. Corresponding threads are formed in the recess 5b of the cap member 5, which coact with the threads of the outer barrel. rllhe cap member is secured to the inner barrel by means of lugs 8, pretn erably 11p-struck from said inner barrel, the lugs entering small cavities 9 formed in the cap member, as shown.

A longitudinal slot 10 is provided in the inner barrel, of .sufficient size toA permit the insertion and removal of leads, whereby the.

barrel may be used as a magazine for extra leads.

By turning the cap 5 the coaction of the threads thereof with the threads of the outer barrel will cause 'the cap member to travel toward the point of the pencil, thus moving the inner barrel longitudinally Within said outer barrel to adjust the lead as desired, there being only slight friction between said barrel members, which readily permit such relative movement.

Although l have shown and described three forms of my invention, it is obvious that various other modications and im provenients may be made 'therein without departing from the scope of the invention, as defiined in the appended claims.

l. A pencil comprising an outer tubular member, an inner tubular member, and a cap coaeting with and enclosing the upper ends of both said members, said inner member having an opening therein whereby said member may be used as a magazine for leads, said opening being closed by said nassaui outer member When said inner and outer members are in assembled relation.

2; In a device of the class described, an outer tubular member having a threaded portion adjacent its upper end, an inner tubular member having a plurality of lugs adjacent its upper end, a cap member, a threaded recess formed therein and adapted to coact with said threaded portion of said outer member, and a reduced recess having cavities therein adapted to engage said lugs t'ormed in said inner member.

3. A pencil having an outer tubular member, an inner tubular member ot slightlyless diameter than said outer member, and constituting a magazine for extra leads, a cap secured to the end of said inner member to advance the same, said cap also threadedly engaging the adjacent end of said outer member to retain said members in assembled relation, and a lead projecting trom the other end of said outer member and advanced by said inner member.

4. In a pencil an outer tubular member, an inner member slidable therein, a threaded cap secured to the outer end of said inner member, and threads formed in said our member and adapted to coact with the threads of said cap, the threads of one of said members being slotted to provide resilient engagement 'thereof With the threads of said other member.

In testimony whereof, l have subscribed my name.

JOHN BRICKEN. 

